org.springframework.graphql.data

Class QuerydslDataFetcher.Builder<T,R>

java.lang.Object

org.springframework.graphql.data.QuerydslDataFetcher.Builder<T,R>

Type Parameters:

T - domain type

R - result type

Enclosing class:

QuerydslDataFetcher<T>

public static class QuerydslDataFetcher.Builder<T,R>
extends Object

Builder for a Querydsl-based DataFetcher. Note that builder instances are immutable and return a new instance of the builder when calling configuration methods.

Method Summary

Modifier and Type	Method and Description
QuerydslDataFetcher.Builder<T,R>	customizer(org.springframework.data.querydsl.binding.QuerydslBinderCustomizer<? extends com.querydsl.core.types.EntityPath<T>> customizer) Apply a QuerydslBinderCustomizer.
DataFetcher<Iterable<R>>	many() Build a DataFetcher to fetch many object instances.
<P> QuerydslDataFetcher.Builder<T,P>	projectAs(Class<P> projectionType) Project results returned from the QuerydslPredicateExecutor into the target projectionType.
DataFetcher<R>	single() Build a DataFetcher to fetch single object instances.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

projectAs

public <P> QuerydslDataFetcher.Builder<T,P> projectAs(Class<P> projectionType)

Project results returned from the QuerydslPredicateExecutor into the target projectionType. Projection types can be either interfaces declaring getters for properties to expose or regular classes outside the entity type hierarchy for DTO projection.

Parameters:

projectionType - projection type

Returns:

a new QuerydslDataFetcher.Builder instance with all previously configured options and projectionType applied

customizer

public QuerydslDataFetcher.Builder<T,R> customizer(org.springframework.data.querydsl.binding.QuerydslBinderCustomizer<? extends com.querydsl.core.types.EntityPath<T>> customizer)

Apply a QuerydslBinderCustomizer.

Parameters:

customizer - the customizer to customize bindings for the actual query

Returns:

a new QuerydslDataFetcher.Builder instance with all previously configured options and QuerydslBinderCustomizer applied

single

public DataFetcher<R> single()

Build a DataFetcher to fetch single object instances.

Returns:

a DataFetcher based on Querydsl to fetch one object

many

public DataFetcher<Iterable<R>> many()

Build a DataFetcher to fetch many object instances.

Returns:

a DataFetcher based on Querydsl to fetch many objects